MUSE_LSF(7)

📦
version 2.8.7 · 2 versions
, in debian bookworm, ubuntu noble

💖 MUSE_LSF(7) — muse recipes 💖

okay bestie, this is the muse_lsf page from the muse recipes manual, and honestly? it's giving "science but make it cute." let's go 🫶

✨ NAME ✨

muse_lsf — compute the LSF. that's it, that's the whole job, and she does it flawlessly 💅

🌸 SYNOPSIS 🌸

esorex muse_lsf [OPTIONS] FILE.sof

literally just call her with esorex, some options if you're feeling fancy, and your .sof file. periodt.

🦋 DESCRIPTION 🦋

she computes the slice and wavelength dependent LSF from a lines spectrum — and that lines spectrum is an ARC lamp, no cap. that's the entire vibe. 🔥

💜 OPTIONS 💜

one bullet per option, all of them, no skipping, we don't do that here ✨

  • --nifu <int> — which IFU to handle, bestie. set it to 0 and all IFUs are processed serially. set it to -1 and all IFUs are processed in parallel. (int; default: 0). the full name of this option for the EsoRex configuration file is muse.muse_lsf.nifu [default = 0].
  • --overscan <str> — okay so if this is "none", she stops when detecting discrepant overscan levels (peep ovscsigma for that one). if it's "offset", she assumes the mean overscan level represents the real offset in the bias levels of the exposures involved, and adjusts the data accordingly. and if it's "vpoly", a polynomial is fit to the vertical overscan and subtracted from the whole quadrant. (str; default: ´vpoly´). the full name of this option for the EsoRex configuration file is muse.muse_lsf.overscan [default = vpoly].
  • --ovscreject <str> — this one influences how values get rejected when computing overscan statistics. either no rejection at all ("none"), rejection using the DCR algorithm ("dcr"), or rejection using an iterative constant fit ("fit"). (str; default: ´dcr´). the full name of this option for the EsoRex configuration file is muse.muse_lsf.ovscreject [default = dcr].
  • --ovscsigma <float> — so if the deviation of mean overscan levels between a raw input image and the reference image is higher than |ovscsigma x stdev|, she stops the processing. 🛑 and if overscan="vpoly", this gets used as the sigma rejection level for the iterative polynomial fit (the level comparison is then done afterwards with |100 x stdev| to guard against incompatible settings). also — has no effect for overscan="offset". noted, bestie. (float; default: 30.0). the full name of this option for the EsoRex configuration file is muse.muse_lsf.ovscsigma [default = 30.0].
  • --ovscignore <int> — the number of pixels of the overscan adjacent to the data section of the CCD that get ignored when computing statistics or fits. (int; default: 3). the full name of this option for the EsoRex configuration file is muse.muse_lsf.ovscignore [default = 3].
  • --save_subtracted <bool> — save the pixel table after the LSF subtraction. (bool; default: False). the full name of this option for the EsoRex configuration file is muse.muse_lsf.save_subtracted [default = False].
  • --line_quality <int> — minimal quality flag in line catalog for selection. (int; default: 3). the full name of this option for the EsoRex configuration file is muse.muse_lsf.line_quality [default = 3].
  • --lsf_range <float> — wavelength window (half size) around each line to estimate LSF. (float; default: 7.5). the full name of this option for the EsoRex configuration file is muse.muse_lsf.lsf_range [default = 7.5].
  • --lsf_size <int> — image size in LSF direction. (int; default: 150). the full name of this option for the EsoRex configuration file is muse.muse_lsf.lsf_size [default = 150].
  • --lambda_size <int> — image size in line wavelength direction. (int; default: 30). the full name of this option for the EsoRex configuration file is muse.muse_lsf.lambda_size [default = 30].
  • --lsf_regression_window <float> — size of the regression window in LSF direction. (float; default: 0.7). the full name of this option for the EsoRex configuration file is muse.muse_lsf.lsf_regression_window [default = 0.7].
  • --merge <bool> — merge output products from different IFUs into a common file. (bool; default: False). the full name of this option for the EsoRex configuration file is muse.muse_lsf.merge [default = False].
  • --combine <str> — type of lampwise image combination to use. (str; default: ´sigclip´). the full name of this option for the EsoRex configuration file is muse.muse_lsf.combine [default = sigclip].
  • --method <str> — LSF generation method, iconic behaviour. depending on this value, either an interpolated LSF cube is created, or a table with the parameters of a hermitean gaussian. (str; default: ´interpolate´). the full name of this option for the EsoRex configuration file is muse.muse_lsf.method [default = interpolate].
📝 heads up bestie: it is possible to create a configuration file containing these options, along with suitable default values. please refer to the details provided by the 'esorex --help' command. iykyk 💫

🌈 SEE ALSO 🌈

the full documentation for the muse pipeline can be downloaded as a PDF file using the following URL:

ftp://ftp.eso.org/pub/dfs/pipelines/muse/muse-pipeline-cookbook-2.8.7.pdf

an overview over the existing ESO pipelines can be found on the web page:

https://www.eso.org/sci/software/pipelines/

basic documentation about the EsoRex program can be found at the esorex(1) man page.

it is possible to call the pipelines from python using the python-cpl package. see https://packages.python.org/python-cpl/index.html for further information. 🐍✨

the other recipes of the muse pipeline are, in all their glory: muse_ampl(7), muse_astrometry(7), muse_bias(7), muse_create_sky(7), muse_dark(7), muse_exp_align(7), muse_exp_combine(7), muse_flat(7), muse_geometry(7), muse_illum(7), muse_lingain(7), muse_qi_mask(7), muse_scibasic(7), muse_scipost(7), muse_scipost_apply_astrometry(7), muse_scipost_calibrate_flux(7), muse_scipost_combine_pixtables(7), muse_scipost_correct_dar(7), muse_scipost_correct_rv(7), muse_scipost_make_cube(7), muse_scipost_raman(7), muse_scipost_subtract_sky(7), muse_scipost_subtract_sky_simple(7), muse_standard(7), muse_twilight(7), muse_wavecal(7). the whole friend group 🫶

⭐ VERSION ⭐

muse_lsf 2.8.7 — yeah she's on 2.8.7 and she's thriving.

👑 AUTHOR 👑

Ole Streicher <https://support.eso.org>

💀 BUG REPORTS 💀

please report any problems to https://support.eso.org. alternatively, you may send a report to the ESO User Support Department <usd-help@eso.org>. they're lovely, they'll help, don't be shy 🙈

📜 LICENSE 📜

this file is part of the MUSE Instrument Pipeline Copyright (C) 2005, 2019 European Southern Observatory

this program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

this program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. see the GNU General Public License for more details. ⚠️ (yes this part is serious, read it, no skipping)

you should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1307 USA

okay that's the whole page, you ate that 💅 this was muse_lsf version 2.8.7, living in the muse recipes manual as MUSE_LSF(7) — go forth and compute those LSFs, bestie, you've got this 💖✨🎀🦋🌸

📦 where this page comes from